In a small bowl, whisk together the kung pao sauce ingredients and set aside.
Coat the shrimp in cornstarch, salt, and pepper.
Heat a large skillet over medium heat, add 1 tbsp oil and 1 tbsp butter. Add the shrimp to the hot pan and cook for 2 minutes per side or until cooked through.
Remove the shrimp from the skillet and cover to keep warm.
In the same skillet, add 1 tbsp of oil and sauté diced peppers and onions over medium-high heat until tender.
Once the veggies are tender, add 1 tbsp of butter, minced garlic, and grated ginger.
Add the shrimp back to the pan.
Top the pan with roasted peanuts and garnish with red pepper flakes, and toss to combine.
Pour the sauce into the skillet, bring to a simmer, cook, and reduce until the sauce thickens.
Garnish with sliced green onion and sesame seeds.
Serve with white rice and enjoy.